Graves disease, hyperthyroidism

Two years ago I was diagnosed with Graves's disease. I took Tapazole for 8 months. In september 2011 my labs were: TSH 0.65 (ref: 0.35 - 4.50) and Free T4: 15.6 (ref: 9.5 - 23.9).
In March 2012 I was retested: labs were: TSH: 0.27 (ref: 0.35 -4.50), Free T4: 13.2 (ref: 9.5 -23.9) Free T3: 4.8 (ref: 3.5 - 6.5).
In September 2012 just this wee: TSH <0.01 (ref:. 0:35 - 4.50), Free T4: 18.1 (ref: 9.5 - 23.9) Free T3: 6.3 (ref: 3.5 - 6.3).
I have been having palpitions at night and dizziness or I should say something like lightheaded and a very stiff neck and shoulder. I feel tired and the last few weeks I had a lot of hot flashes, (regardless of my age 60 those we almost stopped few months ago)
Do you thin they will put me back again on Tapazole or go to the extreme of taking radioactive pill and then be treated by Synthroid.

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